couchdb - Why is a high ratio of 'deleted' to 'active' documents generally considered an anti-pattern? -
couchdb - Why is a high ratio of 'deleted' to 'active' documents generally considered an anti-pattern? -
having high ratio of deleted active documents anti-pattern in cloudant , couchdb (see: http://stackoverflow.com/a/22905621/1033422).
question: why anti-pattern?
every document deleted replaced little amount of metadata called tombstone used during replication (a tombstone created each document in batch delete operation).
although tombstone documents contain little amount of metadata, having lots of tombstone documents have impact on size of used storage.
tombstone documents still show in _changes require processing replication , when building views.
couchdb cloudant
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